It all starts in the basement. This line leads from a hatch in the coal room to this pipesystem here.
越狱从地下室开始，这条线路是从暖气室的一个出入口通到这个管道系统。
2
You need to understand this queue system and find out the bottleneck in the pipe.
您需要理解这个队列系统并找出通道中的瓶颈。
3
This feature is implemented using the popen system call, which allows one process to open a pipe to another process, either for output or input. In this case we open a pipe to the command.